Extend i18nDirective to accept translation options

actimeo / ng2-i18next

use i18next with Angular2

MIT License

11 stars 9 forks source link

Extend i18nDirective to accept translation options #4

Open mazswojejzony opened 8 years ago

mazswojejzony commented 8 years ago

This is required to properly handle plural forms, context, etc. For example see: http://i18next.com/translate/pluralInterval/

It would be great to be able to use i18nDirective like this:

<span i18n="translation_key" i18n-options="{postProcess: 'interval', count: someComponentVariable}"></span>

mazswojejzony commented 8 years ago

Any updates? :-)

feloy commented 8 years ago

Hi,

I just published a 0.1.1 version.

The notation for your example would be:

<span i18n='{"translation_key": {"postProcess": "interval", "count": {{someComponentVariable}}}}'></span>

There is still log of debug messages in the console if you need to see what happens.

Is that working for you?

marta-tatiana commented 8 years ago

I tried to use the feature and passing options works well. However, I observed two problems:

one is that directive is not updated when passed parameter is updated (in your example, if {{someComponentVariable}} changes, change is not reflected to directive).
second is that when there are multiple usages of directive per component, there is an issue with multiple obsservers (only one observer gets the notification about successful init and only one usage is properly rendered). I made some simple fixes I think will improve the situation - @feloy would you mind me submitting a PR?

actimeo commented 8 years ago

Hi, Sure, feel free to submit a PR with your solution. Thanks!

marta-tatiana commented 8 years ago

Hi, I've seen change back to observable in the code - have you observed any problems with Promise implementation?

actimeo commented 8 years ago

Yes, the modification introduced a problem with the i18n-directives that are started before the i18n module is initialized. With your modifications, these directives wasn't updated after the i18n module is initialized.

marta-tatiana commented 8 years ago

That's true, but why is that a problem? Isn't the point of using Observable with subscribe exactly the same, to delay getting the translation until initialization is done? I hope you don't mind the questions, probably I didn't catch some part of the idea - just trying to understand.